Index: branches/RC/core/units/pdf/pdf_text.php
===================================================================
diff -u -N -r10294 -r10432
--- branches/RC/core/units/pdf/pdf_text.php	(.../pdf_text.php)	(revision 10294)
+++ branches/RC/core/units/pdf/pdf_text.php	(.../pdf_text.php)	(revision 10432)
@@ -142,7 +142,7 @@
 		// remove space at the end of line
 		// @todo Find a way to detect a space at the end of last line, which is NOT wrapped
 		// otherwise right-aligned blocks will have a space at the end of last line
-		if ( $words[$i-1] == ' ' && $line_break && 
+		if ( ($i > 0 && $words[$i-1]) == ' ' && $line_break && 
 				($whitespace == 'normal' || $whitespace == 'nowrap' || $whitespace == 'preline')
 				) { 
 			$i--;